I. Introduction
Since the 1920s, the mass production was a common production style in many manufacturing industries in America, such as in motor company, woodworking industry, bicycle industry etc. [1]. In 1970 a completely new idea, production for individuation, was proposed by Alvin Toffler in his book: «Future Shock: The Third Wave» [2]. The production mode really embodying customer requirements is firstly expressed as “mass customization” by Stanley in his book «Future Perfect» [3]. It is an alternative to differentiate companies in a highly competitive and segmented market [4]. Joseph pointed out that the keys in mass customization are the variety and diversification of products instead of the increase of the product cost corresponding [5]. In essence, the scope of mass customization is mass production of customized products [6].